405381552 has 20 divisors (see below), whose sum is σ = 1047235800. Its totient is φ = 135127168.

The previous prime is 405381551. The next prime is 405381553. The reversal of 405381552 is 255183504.

It is an interprime number because it is at equal distance from previous prime (405381551) and next prime (405381553).

It is not an unprimeable number, because it can be changed into a prime (405381551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4222677 + ... + 4222772.

It is an arithmetic number, because the mean of its divisors is an integer number (52361790).

Almost surely, 2^405381552 is an apocalyptic number.

It is an amenable number.

405381552 is an abundant number, since it is smaller than the sum of its proper divisors (641854248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405381552 is a wasteful number, since it uses less digits than its factorization.

405381552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8445460 (or 8445454 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 405381552 is about 20134.0893014807. The cubic root of 405381552 is about 740.0958921266.

The spelling of 405381552 in words is "four hundred five million, three hundred eighty-one thousand, five hundred fifty-two".